Radiographically, the nasopalatine foramen may be mistaken for
1. an incisive canal cyst.
2. a simple bone cyst/traumatic bone cyst.
3. a radicular cyst.
4. a naso-alveolar cyst.

(1) and (3)

All of the above.

(2) and (4)

(1) (2) (3)

(4) only